Knowledge Agora

Title	The lesser of two evils: Enhancing biodegradable bioplastics use to fight plastic pollution requires policy makers interventions in Europe
ID_Doc	24369
Authors	Cucina, M
Title	The lesser of two evils: Enhancing biodegradable bioplastics use to fight plastic pollution requires policy makers interventions in Europe
Year	2023
Published
Abstract	Plastic pollution is a ubiquitous and universally recognized environmental threat, and bioplastics have emerged as a potential solution to this issue in the last years. Being biobased and biodegradable, bioplastics have a reduced carbon footprint with respect to plastics, and they are not expected to accumulate and fragmentate in the environments as plastics do. Nevertheless, some bioplastics drawbacks such as their slow biodegradation in engineered (i.e., anaerobic digestion and composting) and natural (i.e., soil and water) environments have been used by sceptics to discredit bioplastics, and this have induced policy makers to use a precautionary approach to the topic (i.e., including bioplastics in the ban of single use products and in the count of inert materials in organic fertilizers). Using a simplified ecologic risk assessment analysis, this Opinion paper aimed to show that bioplastics that are proven to be intrinsically biodegradable are always a better choice than plastics. Having a residence time in natural environments of about 1-10 years, the likelihood of bioplastics causing harmful effects on living organisms is about 100-1000 times lower than plastics that resides thousands of years in the environments. Taking this into consideration, policy makers are asked to revise recent regulations and directives to enhance bioplastics diffusion and fight plastic pollution. In this sense, Single Use Plastic Directive 2019/904 may exclude biodegradable bioplastic items from the ban, and European Regulation on Fertilizers 2019/1009 may exclude biodegradable bioplastics residues from the count of inert materials in organic fertilizers. Bioplastics collection within biowastes and subsequent anaerobic digestion should be also favoured, in order to force controlled bioplastics biodegradation into biogas and reduce their leakage into the environment, resulting in the enhanced circularity of bioplastics products.
PDF	https://doi.org/10.1016/j.eiar.2023.107230

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